// This Source Code is in the Public Domain per: http://unlicense.org
package org.litesoft.aokeyhole.swing;

import org.litesoft.aokeyhole.toolkit.*;

import java.awt.*;
import java.awt.event.*;

public class BoxedTextCanvas extends Canvas implements View {
    private ScaledDrawableBoxedTextClickable mScaledDrawableBoxedTextClickable = ScaledDrawableBoxedTextClickableNull.INSTANCE;
    private BoxedTextClickListener mBoxedTextClickListener;
    private Dimension mSize;

    BoxedTextCanvas( BoxedTextClickListener pBoxedTextClickListener, int pSize ) {
        mBoxedTextClickListener = (pBoxedTextClickListener != null) ? pBoxedTextClickListener : BoxedTextClickListenerNull.INSTANCE;
        mSize = new Dimension( pSize, pSize );

        addComponentListener( new ComponentAdapter() {
            @Override
            public void componentResized( ComponentEvent e ) {
                updateSize( getSize() );
            }
        } );

        addMouseListener( new MouseAdapter() {
            @Override
            public void mousePressed( MouseEvent e ) {
                BoxedText bt = mScaledDrawableBoxedTextClickable.getClickedOn( e.getPoint() );
                if ( bt != null ) {
                    mBoxedTextClickListener.clickedOn( bt );
                }
            }
        } );
    }

    public void setScaledDrawableBoxedTextClickable( ScaledDrawableBoxedTextClickable pScaledDrawableBoxedTextClickable ) {
        if ( pScaledDrawableBoxedTextClickable == null ) {
            pScaledDrawableBoxedTextClickable = ScaledDrawableBoxedTextClickableNull.INSTANCE;
        }
        if ( pScaledDrawableBoxedTextClickable != mScaledDrawableBoxedTextClickable ) {
            mScaledDrawableBoxedTextClickable.dispose();
            mScaledDrawableBoxedTextClickable = pScaledDrawableBoxedTextClickable;
            update();
        }
    }

    private void updateSize( Dimension pSize ) {
        if ( !pSize.equals( mSize ) ) {
            mSize = pSize;
        }
    }

    @Override
    public Dimension getPreferredSize() {
        return mSize;
    }

    @Override
    public void update() {
        repaint();
    }

    @Override
    public void paint( Graphics g ) {
        mScaledDrawableBoxedTextClickable.draw( g, getSize() );
    }
}